text: #ifndef OUTPUT_H
  #define OUTPUT_H
  
  #include <iostream>
  #include "recipe.h"
  #include <vector>
  
  // EFFECTS: Prints the available command-line options.
  void print_commands();
  
  // REQUIRES: master_list is sorted
  // MODIFIES: output
  // EFFECTS: Prints the grocery list
  //          in a fashionable manner.
  void print_grocery_list(std::vector<Ingredient>* master_list);
  
  // EFFECTS: Prints the recipe names
  //          in a fashionable manner.
  void print_recipe_names(std::vector<std::string>* recipe_names);
  
  #endif
  